<!DOCTYPE html>
<html lang="en">
<head>

    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    #p1{color: green}
    .c1{color: blue}
    h1,h2{background-color: yellow}
    input{color: pink}
    input[type='submit']{background-color: red}
    *{border: 1px solid blue}
  </style>



</head>
<body>
<ul>
  <li class="c1">刘德华</li>
  <li id="p1">张学友</li>
  <li>郭富城</li>
</ul>

  <h1 class="c1">悟空</h1>
  <h1 >八戒</h1>
  <h1 >沙僧</h1>

  <h2 >刘备</h2>
  <input  type="submit" value="提交按钮">
  <input  type="button" value="普通按钮">

</body>
</html>